Ok this change is the dumbest solution to the alt farming problem
1st not everyone has 40 alts to farm - in fact very few people do.
2nd now all you need is 10 alts to farm daily
3rd if you got enough time to do more the 10 alts daily and keep them training so that your main is no more then 3 levels higher so your alt can attack it w/o a revenge - YOU GOT TOO MUCH FREE TIME

Most of the alt farming is done through revenge. SO make it if you win you cant revenge! This will slow down alt farming. Limit revenges to 10 a day but let people attack as much as they want in wilds.

That is a better solution to alt farming IMO NOT LIMIT ALL PvP to 10 a day